反应详情

To N-(6-methyl-3′-nitrobiphenyl-3-yl)-3-(trifluoromethyl)benzamide (1.00 g, 2.50 mmol) was added ethanol (18 mL) and acetic acid (1.7 mL) and iron (770 mg). The resulting mixture was heated to reflux until LCMS indicated complete reduction, typically 2-4 hours. The reaction was cooled to ambient temperature, and the unreacted iron was removed by filtration. The ethanolic filtrate was evaporated to dryness and EtOAc was added to the residue. The resulting rust-like particulates were removed by filtration through a small pad of diatomaceous earth, and the filtrate was evaporated to dryness to leave the crude aniline. The compound was recovered in quantitative yield and was used without further purification in the subsequent reaction. MS (EI) m/z=371 (M+H).

1. temperatureThe resulting mixture was heated
2. temperatureto reflux until LCMS
3. customreduction, typically 2-4 hours
4. customthe unreacted iron was removed by filtration
5. customThe ethanolic filtrate was evaporated to dryness and EtOAc
6. additionwas added to the residue
7. customThe resulting rust-like particulates were removed by filtration through a small pad of diatomaceous earth
8. customthe filtrate was evaporated to dryness